The Java. io. OutputStream class is the superclass of all classes representing an output stream of bytes. An output stream accepts output bytes and sends them to some sink. Applications that need to define a subclass of OutputStream must always provide at least a method that writes one byte of output.

What is get input stream?

The getInputStream() method of Java Socket class returns an input stream for the given socket. If you close the returned InputStream, then it will close the linked socket.

What is the use of output stream class?

This class implements an output stream in which the data is written into a byte array. A data output stream lets an application write primitive Java data types to an output stream in a portable way. A file output stream is an output stream for writing data to a File or to a FileDescriptor .